Other Anthropology Commons^™

Associations Between Male Testosterone And Immune Function In A Pathogenically Stressed Forager-Horticultural Population, Benjamin C. Trumble, Aaron D. Blackwell, Jonathan Stieglitz, Melissa Emery Thompson, Ivan Maldonado Suarez, Hillard Kaplan, Michael Gurven

ESI Publications

Objectives—Despite well-known fitness advantages to males who produce and maintain high endogenous testosterone levels, such phenotypes may be costly if testosterone-mediated investment in reproductive effort trade-off against investment in somatic maintenance. Previous studies of androgen-mediated trade-offs in human immune function find mixed results, in part because most studies either focus on a few indicators of immunity, are confounded by phenotypic correlation, or are observational. Here the association between male endogenous testosterone and 13 circulating cytokines are examined before and after ex vivo antigen stimulation with phytohaemagglutinin (PHA) and lipopolysaccharides (LPS) in a high pathogen population of Bolivian forager-horticulturalists.

Materials …

Health Costs Of Reproduction Are Minimal Despite High Fertility, Mortality And Subsistence Lifestyle, Michael Gurven, Megan Costa, Ben Trumble, Jonathan Stieglitz, Bret Beheim, Daniel Eid Rodriguez, Paul L. Hooper, Hillard Kaplan

ESI Publications

Women exhibit greater morbidity than men despite higher life expectancy. An evolutionary life history framework predicts that energy invested in reproduction trades-off against investments in maintenance and survival. Direct costs of reproduction may therefore contribute to higher morbidity, especially for women given their greater direct energetic contributions to reproduction. We explore multiple indicators of somatic condition among Tsimane forager-horticulturalist women (Total Fertility Rate = 9.1; n = 592 aged 15–44 years, n = 277 aged 45+). We test whether cumulative live births and the pace of reproduction are associated with nutritional status and immune function using longitudinal data spanning 10 …

High Resting Metabolic Rate Among Amazonian Forager-Horticulturalists Experiencing High Pathogen Burden, Michael Gurven, Benjamin C. Trumble, Jonathan Stieglitz, Gandhi Yetish, Daniel Cummings, Aaron D. Blackwell, Bret Beheim, Hillard Kaplan, Herman Pontzer

ESI Publications

Objectives—Resting metabolic rate (RMR) reflects energetic costs of homeostasis and accounts for 60-75% of total energy expenditure (TEE). Lean mass and physical activity account for much RMR variability, but the impact of prolonged immune activation from infection on human RMR is unclear in naturalistic settings. We evaluate the effects of infection on mass-corrected RMR among Bolivian forager-horticulturalists, and assess whether RMR declines more slowly with age than in hygienic sedentary populations, as might be expected if older adults experience high pathogen burden.

Materials and Methods—RMR was measured by indirect calorimetry (Fitmate MED, Cosmed) in 1,300 adults aged 20-90 …

Evolving Patterns: Conflicting Perceptions Of Cultural Preservation And The State Of Batik’S Cultural Inheritance Among Women Artisans In Guizhou, China, Katherine B. Uram

Lawrence University Honors Projects

My exploration features Miao batik-making in Guizhou Province and explores several sets of overlapping questions. The first set focuses on the status of the craft of Miao batik-making and the perceptions of its future. Is batik-making a dying art form? To what extent is Batik-making a thriving cultural practice today, or do Miao in China (and other ethnic groups involved in batik-making) perceive an inheritance crisis? My next focus is on the role of institutions and the tourism industry. If taught less and less in the domestic sphere (traditions passed from mother to daughter), what role do public domains such …

Immune Function In Amazonian Horticulturalists, Aaron D. Blackwell, Benjamin C. Trumble, Ivan Maldonado Suarez, Jonathan Stieglitz, Bret Beheim, J. Josh Snodgrass, Hillard Kaplan, Michael Gurven

ESI Publications

Background—Amazonian populations are exposed to diverse parasites and pathogens, including protozoal, bacterial, fungal, and helminthic infections. Yet much of our understanding of the immune system is based on industrialised populations where these infections are relatively rare.

Aim—We examine distributions and age-related differences in 22 measures of immune function for Bolivian forager-horticulturalists and US and European populations.

Subjects and Methods—Subjects were 6,338 Tsimane aged 0–90 years. Blood samples collected between 2004–2014 were analysed for 5-part blood differentials, C-reactive protein, erythrocyte sedimentation rate (ESR), and total immunoglobulins E, G, A, and M. Flow cytometry was used to quantify naive …

Social And Scientific Implications Of Genetic Testing In The Digital Age, Yaruska A. Ordinola

Senior Honors Projects

From Mendel’s law of inheritance in the 19th century through Watson and Crick’s revolutionary observations of the double helix in the 20th century, genetics has been a fascinating and continuing topic of discussion in the field of science (Collins & McKusick, 2001). Major studies like the Human Genome Project (HGP), initiated in 1990 and completed in 2003, provided a starting point from which scientists could more thoroughly investigate the human condition on a genetic level. Arising from this study, personal genomics is considered a blooming field in genetics- in which rapidly developing technological advances are able to provide easier and …

Enough: Narratives Of Migration On A Small-Farm In Sidibouafif, Steven Ring

Independent Study Project (ISP) Collection

Small-scale family farms in the Eastern Rif have undergone challenge after challenge throughout the 20^th century, including war, poverty, restrictions of natural resources, overpopulation, and extensive labor migration. This paper aims to examine the ways in which narratives of migration manifest in the daily lives of a family living in the plain of Al-Hoceima. I hold the belief that the ways in which large-scale processes manifest in our daily lives is indicative of how these processes affect our identity. This research comprises a case-study with the Khalid family of SidiBouafif, and aims to examine the ways in which media, …

Bioarchaeological Analysis Of Oak View Landing (40dr1): An Archaic Population In The Kentucky Lake Reservior, Katy D. Grant-Mclemore

Master's Theses

The biocultural examination of the Archaic population recovered at Oak View Landing (40DR1) investigates the lifeways and adaptations of prehistoric people as they reflect sociopolitical and subsistence strategies.

A comprehensive bioarchaeological analysis was conducted on the adult individuals (18 males, 16 females, 16 of indeterminate sex) excavated from a multiple occupation site located along the Tennessee River in Decatur County, Tennessee. Skeletal indicators used to understand biocultural phenomena were assessed macroscopically on cranial and postcranial elements. Furthermore, mortuary data, for adults and subadults, were used to determine any patterns of preferential treatment at death.

Results from this study indicate that …

Helminth Infection, Fecundity, And Age Of First Pregnancy In Women, Aaron D. Blackwell, Marilyne D. Tamayo, Bret Beheim, Benjamin C. Trumble, Jonathan Stieglitz, Paul L. Hooper, Melanie Martin, Hillard Kaplan, Michael Gurven

ESI Publications

Infection with intestinal helminths results in immunological changes that influence the odds of comorbid infections, and might also affect fecundity by inducing immunological states supportive of conception and pregnancy. Here we investigate associations between intestinal helminths and fertility in human females, utilizing nine years of longitudinal data from 986 Bolivian forger-horticulturalists, experiencing natural fertility and a 70% helminth prevalence. We find that different species of helminth are associated with opposing effects on fecundity. Infection with roundworm (Ascaris lumbricoides) is associated with earlier first births and shortened interbirth intervals, while infection with hookworm is associated with delayed first pregnancy and extended …

Natural Sleep And Its Seasonal Variations In Three Pre-Industrial Societies, Gandhi Yetish, Hillard Kaplan, Michael Gurven, Brian Wood, Herman Pontzer, Paul R. Manger, Charles Wilson, Ronald Mcgregor, Jerome M. Siegel

ESI Publications

How did humans sleep before the modern era? Because the tools to measure sleep under natural conditions were developed long after the invention of the electric devices suspected of delaying and reducing sleep, we investigated sleep in three preindustrial societies[1–3]. We find that all three show similar sleep organization, suggesting that they express core human sleep patterns, likely characteristic of pre-modern era Homo sapiens. Sleep periods, the times from onset to offset, averaged 6.9–8.5-h, with sleep durations of 5.7–7.1-h, amounts near the low end of those industrial societies[4–7]. There was a difference of nearly 1-h between summer and winter sleep. …

Calcaneal Quantitative Ultrasound Indicates Reduced Bone Status Among Physically Active Adult Forager-Horticulturalists, Jonathan Stieglitz, Felicia C. Madimenos, Hillard Kaplan, Michael Gurven

ESI Publications

Six months of exclusive breastfeeding (EBF) is considered optimal for infant health, though globally most infants begin complementary feeding (CF) earlier—including among populations that practice prolonged breastfeeding. Two frameworks for understanding patterns of early CF emerge in the literature. In the first, maternal and infant needs trade-off, as “maternal-centric” factors—related to time and energy demands, reproductive investment, cultural influences, and structural barriers— favor supplanting breastfeeding with earlier and increased CF. A second framework considers that “infant-centric” factors—related to infant energetic needs—favor CF before six months to supplement breastfeeding.

We apply these two frameworks in examining early CF among the Tsimane—a …

Does Market Integration Buffer Risk, Erode Traditional Sharing Practices And Increase Inequality? A Test Among Bolivian Forager-Farmers, Michael Gurven, Adrian V. Jaeggi, Christopher Von Rueden, Paul L. Hooper, Hillard Kaplan

ESI Publications

Sharing and exchange are common practices for minimizing food insecurity in rural populations. The advent of markets and monetization in egalitarian indigenous populations presents an alternative means of managing risk, with the potential impact of eroding traditional networks. We test whether market involvement buffers several types of risk and reduces traditional sharing behavior among Tsimane Amerindians of the Bolivian Amazon. Results vary based on type of market integration and scale of analysis (household vs. village), consistent with the notion that local culture and ecology shape risk management strategies. Greater wealth and income were unassociated with the reliance on others for …

Depression As Sickness Behavior? A Test Of The Host Defense Hypothesis In A High Pathogen Population, Jonathan Stieglitz, Benjamin C. Trumble, Melissa Emery Thompson, Aaron D. Blackwell, Hillard Kaplan, Michael Gurven

ESI Publications

Sadness is an emotion universally recognized across cultures, suggesting it plays an important functional role in regulating human behavior. Numerous adaptive explanations of persistent sadness interfering with daily functioning (hereafter “depression”) have been proposed, but most do not explain frequent bidirectional associations between depression and greater immune activation. Here we test several predictions of the host defense hypothesis, which posits that depression is part of a broader coordinated evolved response to infection or tissue injury (i.e. “sickness behavior”) that promotes energy conservation and reallocation to facilitate immune activation. In a high pathogen population of lean and relatively egalitarian Bolivian foragerhorticulturalists, …

Swamp Surburbia And Rebellion Against A Culture Of Crime: The Birth Of Black Skateboarding In The Big Easy, Aubrey Edwards

LSU New Orleans Theses and Dissertations

This research addresses a significant gap in previous work on the formation of urban and suburban black skateboarding subcultures. By using data generated through oral histories, photographs, mapping, and literature review, this study explores why black youth initially began skateboarding in New Orleans in the mid-2000s. In contrast to the scholarly literature and local popular perception, this visual anthropological study aims to provide an alternative origin story of black skateboarding in Post-Katrina New Orleans, and to examine the continuing popularity of the sport within the young black community.

Lambda Alpha Anthropology Honors Society (Lab): Bridging The Gap Between Coursework And Career, Adriana Stein, Stefanie Berganini

Student Research Symposium

Many anthropology majors gain an academic familiarity with the subject through coursework, but lack an understanding of how to utilize their anthropological skills outside of academia in future careers. To remedy this issue, the Lambda Alpha Beta Honor Society (LAB), a student-led anthropology organization at Portland State University, provides opportunities for participation in events that get students involved with our local community, such as non-profit organizations and local cultural institutions. Some of these organizations include the Oregon Museum of Science and Industry (OMSI), Clark Public Utilities, The Ridgefield Wildlife Refuge, Potluck in the Park, and Habitat for Humanity. As an …

Life History Theory And School-Age Pregnancy: Review And Application, Anna Rozman

Honors Scholar Theses

The United States currently holds one of the highest teenage pregnancy rates in the developed world, but many Americans, including policy makers, view adolescent childbearing as a societal problem that stems from negligence, promiscuity, and poor decision making. This project seeks to frame the institution of school-age motherhood through the lens of Life History Theory, which posits that early reproduction is an adaptation in the face of harsh conditions and high extrinsic mortality rates. This assertion is supported by evidence that adolescent childbearing has been the norm for most of human history, and continues to be practiced in natural fertility …

Inclusive Fitness And Differential Productivity Across The Life Course Determine Intergenerational Transfers In A Small-Scale Human Society, Paul L. Hooper, Michael Gurven, Jeffrey Winking, Hillard Kaplan

ESI Publications

Transfers of resources between generations are an essential element in current models of human life-history evolution accounting for prolonged development, extended lifespan and menopause. Integrating these models with Hamilton’s theory of inclusive fitness, we predict that the interaction of biological kinship with the age-schedule of resource production should be a key driver of intergenerational transfers. In the empirical case of Tsimane’ forager–horticulturalists in Bolivian Amazonia, we provide a detailed characterization of net transfers of food according to age, sex, kinship and the net need of donors and recipients. We show that parents, grandparents and siblings provide significant net downward transfers …

Ethics In The Field: Contemporary Challenges, Lisa C. Depaoli

Journal of Ecological Anthropology

No abstract provided.

Writing About Aj Pop B'Atz': Bruce Grindal And The Transformation Of Ethnographic Writing, Sarah Ashley Kistler

Faculty Publications

The works of Bruce Grindal teach us many things about anthropology’s humanistic tradition. With examples such as Redneck Girl and “Postmodernism as Seen by the Boys at Downhome Auto Repair,” Bruce Grindal demonstrated how we can creatively engage our ethnographic writing to reflect lived experiences. In this article, I examine Bruce’s influence on my ethnographic writing and collaborative research in the Maya community of San Juan Chamelco, Guatemala. Since 2006, I have worked collectively with a group of Chamelqueños to investigate the story of their local hero, Aj Pop B’atz’. In the sixteenth century, Aj Pop B’atz’ welcomed Spanish invaders …

Killin' It On Corporate Ground: The Cultural Politics Of Street Performance In A Gentrified Space, Hillary C. Matson

All Master's Theses

On a weekend evening in San Diego’s historic Eclipse district, several buskers capture the attention of passersby as they make their way through the bustling crowds to the nearest restaurant or nightclub. These buskers represent various subcultures within a gentrified entertainment district of urban renewal that caters to the middle class. This ethnographic study aims to examine the cultural politics of busker performances in a highly corporate, gentrified space. Are buskers able to maintain their independence from the market economy or are they unintentionally or willingly reinforcing this system? Through completion of an ethnographic study in the Eclipse district, this …

Low Mineral Density Of A Weight-Bearing Bone Among Adult Women In A High Fertility Population, Jonathan Stieglitz, Bret Beheim, Benjamin C. Trumble, Felicia C. Madimenos, Hillard Kaplan, Michael Gurven

ESI Publications

Evolutionary theories of aging posit that greater reproductive effort causes somatic decline given a fundamental trade-off between investing energy in reproduction and repair. Few studies in high fertility human populations support this hypothesis, and problems of phenotypic correlation can obscure the expected trade-off between reproduction and somatic condition. This cross-sectional study investigates whether greater reproductive effort is associated with reduced calcaneal bone mineral density (BMD) among female Tsimane forager-farmers of lowland Bolivia. We also investigate whether female Tsimane BMD values are lower than sex- and age-matched US reference values, despite the fact that Tsimane engage in higher physical activity levels …

Leadership In An Egalitarian Society, Christopher Von Rueden, Michael Gurven, Hillard Kaplan, Jonathan Stieglitz

ESI Publications

Leadership is instrumental to resolution of collective action dilemmas, particularly in large, heterogeneous groups. Less is known about the characteristics or effectiveness of leadership in small-scale, homogeneous, and relatively egalitarian societies, in which humans have spent most of our existence. Among Tsimane’ forager-horticulturalists of Bolivia, we (1) assess traits of elected leaders under experimental and naturalistic conditions and (2) test whether leaders impact collective action outcomes. We find that elected leaders are physically strong and have more kin and other exchange partners. Their ranks on physical dominance, kin support, and trustworthiness predict how well their groups perform, but only where …

Political Influence Associates With Cortisol And Health Among Egalitarian Forager-Farmers, Christopher Von Rueden, Benjamin C. Trumble, Melissa Emery Thompson, Jonathan Stieglitz, Paul L. Hooper, Aaron D. Blackwell, Hillard Kaplan, Michael Gurven

ESI Publications

Background and objectives: Low social status increases risk of disease due, in part, to the psychosocial stress that accompanies feeling subordinate or poor. Previous studies report that chronic stress and chronically elevated cortisol can impair cardiovascular and immune function. We test whether lower status is more benign in small-scale, relatively egalitarian societies, where leaders lack coercive authority and there is minimal material wealth to contest.

Methodology: Among Tsimane’ forager-horticulturalists of lowland Bolivia, we compare informal political influence among men with urinary cortisol, immune activation (innate and acquired), and morbidity as assessed during routine medical exams.

Results: After …

Atherosclerosis: A Longue Durée Approach, L. Samuel Wann, Randall C. Thompson, Adel H. Allam, Caleb E. Finch, Albert Zink, Hillard Kaplan, Bruno Frohlich, Guido P. Lombardi, M. Linda Sutherland, James D. Sutherland, Lucia Watson, Samantha L. Cox, Michael I. Miyamoto, Alexandre F. R. Stewart, Jagat Narula, Gregory S. Thomas

ESI Publications

Fernand Braudel popularized the longue durée approach to scholarly investigation in the mid-20th century. The longue durée approach can be loosely translated to mean “look for the big picture, synthesize data collected using all available methodology over the long periods of time to identify fundamental principles, rather than becoming preoccupied with isolated observations.” Braudel, a historian and economist, emphasized observation of enduring historical structures and analysis of long-term, panoramic economic trends rather than concentrating on detailed descriptions of particular events or individuals. He also urged the use of insight gained from many scholarly disciplines to identify the essential underpinnings of …

Genomic Correlates Of Atherosclerosis In Ancient Humans, Albert Zink, L. Samuel Wann, Randall C. Thompson, Andreas Keller, Frank Maixner, Adel H. Allam, Caleb E. Finch, Bruno Frohlich, Hillard Kaplan, Guido P. Lombardi, M. Linda Sutherland, James D. Sutherland, Lucia Watson, Samantha L. Cox, Michael I. Miyamoto, Jagat Narula, Alexandre F. R. Stewart, Gregory S. Thomas, Johannes Krause

ESI Publications

Paleogenetics offers a unique opportunity to study human evolution, population dynamics, and disease evolution in situ. Although histologic and computed x-ray tomographic investigations of ancient mummies have clearly shown that atherosclerosis has been present in humans for more than 5,000 years, limited data are available on the presence of genetic predisposition for cardiovascular disease in ancient human populations. In a previous whole-genome study of the Tyrolean Iceman, a 5,300-year-old glacier mummy from the Alps, an increased risk for coronary heart disease was detected. The Iceman’s genome revealed several single nucleotide polymorphisms that are linked with cardiovascular disease in genome-wide association …

Why Did Ancient People Have Atherosclerosis?: From Autopsies To Computed Tomography To Potential Causes, Gregory S. Thomas, L. Samuel Wann, Adel H. Allam, Randall C. Thompson, David E. Michalik, M. Linda Sutherland, James D. Sutherland, Guido P. Lombardi, Lucia Watson, Samantha L. Cox, Clide M. Valladolid, Gomaa Abd El-Maksoud, Muhammad Al-Tohamy Soliman, Ibrahem Badr, Abd El-Halim Nur El-Din, Emily M. Clarke, Ian G. Thomas, Michael I. Miyamoto, Hillard Kaplan, Bruno Frohlich, Jagat Narula, Alexandre F. R. Stewart, Albert Zink, Caleb E. Finch

ESI Publications

Computed tomographic findings of atherosclerosis in the ancient cultures of Egypt, Peru, the American Southwest and the Aleutian Islands challenge our understanding of the fundamental causes of atherosclerosis. Could these findings be true? Is so, what traditional risk factors might be present in these cultures that could explain this apparent paradox? The recent computed tomographic findings are consistent with multiple autopsy studies dating as far back as 1852 that demonstrate calcific atherosclerosis in ancient Egyptians and Peruvians. A nontraditional cause of atherosclerosis that could explain this burden of atherosclerosis is the microbial and parasitic inflammatory burden likely to be present …

Funerary Artifacts, Social Status, And Atherosclerosis In Ancient Peruvian Mummy Bundles, M. Linda Sutherland, Samantha L. Cox, Guido P. Lombardi, Lucia Watson, Clide M. Valladolid, Caleb E. Finch, Albert Zink, Bruno Frohlich, Hillard Kaplan, David E. Michalik, Michael I. Miyamoto, Adel H. Allam, Randall C. Thompson, L. Samuel Wann, Jagat Narula, Gregory S. Thomas, James D. Sutherland

ESI Publications

Background: Evidence of atherosclerotic plaques in ancient populations has led to the reconsideration of risk factors for heart disease and of the common belief that it is a disease of modern times.

Methods: Fifty-one wrapped mummy bundles excavated from the sites of Huallamarca, Pedreros, and Rinconada La Molina from the Puruchuco Museum collection in Lima, Peru, were scanned using computed tomography to investigate the presence of atherosclerosis. Funerary artifacts contained within the undisturbed mummy bundles were analyzed as an attempt to infer the social status of the individuals to correlate social status with evidence of heart disease in …

Toward A Biocommunicable Cartography Of Health Decision-Making In The Amazon Basin Of Ecuador, James Cartwright

Lawrence University Honors Projects

This paper comprises a critical, ethnographic study of health communication in a rural community of Amazonian Ecuador. By synthesizing approaches from anthropology, discourse studies, and public health, the study explores how conversations influence health decisions, how communities understand health systems, and how macrostructural discourse changes the political economy of healthcare in Ecuador. My work draws on the recent theoretical development of ‘biocommunicability’ in anthropology as well as earlier sociological research on knowledge construction. Most importantly, this paper offers a critique of current interventions by NGOs in the region.

Identifying Desaparecidos: The Development Of Forensic Anthropology In Chile, Amanda M. Quinn

Renée Crown University Honors Thesis Projects - All

Between 1973 and 1990, Pinochet’s dictatorship in Chile implemented the systematic practice of forced disappearances and extrajudicial killings in order to eradicate the imagined “communist cancer” (Wyndham and Read 2010: 31). A total of 3,227 deaths have been tallied; 1,465 of these were cases of detenidos-desaparecidos, or enforced disappearances (Garrido and Intriago 2012: 34). Scholars suggest that Chile’s transition to democracy will remain incomplete without first locating and identifying the desaparecidos (Aguilar 2002). Through methods of comparing postmortem skeletal analysis with antemortem data, forensic anthropologists carry out the important work that makes identifications possible.

This thesis evaluates the development …

Pedicures In Combat Boots: Navigating Gender In The Syracuse Police Department, An Ethnographic Analysis, Rebecca Ierardo

Renée Crown University Honors Thesis Projects - All

In an ethnographic analysis, I seek to answer the question: how, if at all, does gender interact with police work? Using the women of the Syracuse Police Department (SPD) as the defined population for my study, I conducted 4 in-depth ethnographic interviews along with 5 sessions of participant observation, accompanying female officers during their shifts for anywhere from 4-8 hours at a time. Historically, women’s presence in law enforcement has been almost nonexistent, particularly in police work which is overwhelmingly perceived as the domain of men. Women in police work have made some progress parallel to social progress over time, …